KTTN METAR

Current observed weather at Trenton Mercer (TTN · KTTN), Trenton, NJ, elevation 213 ft. Reported 21 Sep 2026 0300Z, decoded below with the past 24 hours of observations. · Open on the map

All of Trenton Mercer — runways, frequencies, charts and live weather

SPECI special report 21 Sep 2026 0300Z

IFR

SPECI KTTN 210300Z AUTO 01007KT 2 1/2SM +RA BR SCT026 OVC040 20/20 A2992 RMK AO2 P0005 T02000200

Wind

010° at 7 kt

Visibility

2.5 SM

Ceiling

4,000 ft OVC

Temp / Dewpoint

20° / 20°C

Altimeter

29.92"

Times are UTC (Zulu), as they appear in the report.

What it says

Field	Value	What that means
Flight category	IFR	Instrument flight rules — ceiling 500 to 999 ft and/or visibility 1 to less than 3 SM.
Wind	010° at 7 kt	Direction is degrees true, as reported.
Visibility	2.5 SM	Prevailing horizontal visibility in statute miles.
Ceiling	4,000 ft OVC	Lowest OVC layer, 4,000 ft above the field.
Sky	Scattered at 2,600 ft AGL, Overcast at 4,000 ft AGL	—
Temperature	20°C (68°F)	—
Dewpoint	20°C (68°F)	—
Temp/dewpoint spread	0°C	A spread of 2°C or less favours fog or low stratus forming.
Altimeter	29.92 inHg	Set this in the Kollsman window; it is the field’s current sea level pressure setting.

VFRMVFRIFRLIFRhover for the full observation

Flight category

Wind · kt (gust shading)

Ceiling · ft (log scale, ▲ = unlimited)

Visibility · SM

All 24 stored observations time · category · wind · visibility · ceiling · temp

Time	Category	Wind	Visibility	Ceiling	Temp
0353Z	MVFR	100° at 5 kt	10+ SM	2,600 ft	18°C
0453Z	MVFR	110° at 6 kt	10+ SM	2,900 ft	18°C
0553Z	VFR	110° at 7 kt	10+ SM	5,500 ft	18°C
0653Z	MVFR	100° at 6 kt	10+ SM	2,900 ft	18°C
0753Z	MVFR	090° at 5 kt	10+ SM	2,600 ft	18°C
0853Z	MVFR	090° at 5 kt	9 SM	2,900 ft	18°C
0953Z	VFR	100° at 5 kt	8 SM	4,100 ft	17°C
1053Z	VFR	070° at 4 kt	7 SM	3,300 ft	17°C
1153Z	VFR	110° at 7 kt	10+ SM	3,500 ft	17°C
1253Z	VFR	Variable at 5 kt	10+ SM	3,900 ft	18°C
1353Z	MVFR	120° at 4 kt	4 SM	2,100 ft	18°C
1453Z	VFR	000° at 0 kt	6 SM	3,500 ft	18°C
1553Z	MVFR	140° at 5 kt	7 SM	2,600 ft	19°C
1653Z	MVFR	160° at 5 kt	7 SM	2,500 ft	19°C
1753Z	MVFR	000° at 0 kt	10+ SM	2,100 ft	21°C
1853Z	MVFR	000° at 0 kt	10+ SM	2,000 ft	21°C
1953Z	MVFR	000° at 0 kt	10+ SM	2,700 ft	22°C
2053Z	MVFR	000° at 0 kt	10+ SM	2,600 ft	22°C
2153Z	VFR	000° at 0 kt	10+ SM	7,000 ft	22°C
2253Z	VFR	000° at 0 kt	10+ SM	6,000 ft	22°C
2353Z	VFR	000° at 0 kt	8 SM	5,500 ft	22°C
0053Z	MVFR	000° at 0 kt	4 SM	2,800 ft	22°C
0153Z	IFR	350° at 4 kt	4 SM	800 ft	21°C
0253Z	MVFR	360° at 5 kt	6 SM	2,600 ft	21°C

Frequently asked

What is the current METAR at KTTN?

The 21 Sep 2026 0300Z observation at Trenton Mercer reads: SPECI KTTN 210300Z AUTO 01007KT 2 1/2SM +RA BR SCT026 OVC040 20/20 A2992 RMK AO2 P0005 T02000200

Is KTTN VFR right now?

Trenton Mercer is reporting IFR. Instrument flight rules — ceiling 500 to 999 ft and/or visibility 1 to less than 3 SM.

How often is the KTTN METAR updated?

Routine observations are issued hourly, usually in the 5 minutes before the hour. A SPECI is issued between them whenever conditions change significantly — a ceiling or visibility crossing a category threshold, a wind shift, or the onset of precipitation or a thunderstorm.

More about KTTN

Observations from the US National Weather Service Aviation Weather Center. Times are UTC (Zulu). For planning and education only — always confirm with an official preflight briefing.

Something here wrong or out of date? Report a data problem.